Vulnerability Details CVE-2017-9478
The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices sets the CM MAC address to a value with a two-byte offset from the MTA/VoIP MAC address, which indirectly allows remote attackers to discover hidden Home Security Wi-Fi networks by leveraging the embedding of the MTA/VoIP MAC address into the DNS hostname.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 54.1%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2017-9478
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cpe:2.3:h:cisco:dpc3939:-
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cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421733-160420a-cmcst
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cpe:2.3:o:cisco:dpc3939_firmware:dpc3939-p20-18-v303r20421746-170221a-cmcst